LTE on AOSP not working - Galaxy S 4 Q&A, Help & Troubleshooting

Okey i got I9505 with the new bootloader and i cant seem to get LTE working , as it's doesn't even connect and drops all connection ever couple of minuts or so. I've tried flashing all kinds of modem but it doesnt seems to help so does anyone know how to fix this problem ?

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Question on WiFi not working immediately on some S4 but working on others

How is it that some i9505 can just flash ROMs such as Omega and get properly working wifi whereas I and many others still have to flash the modem/wifi fix to make it work? And apparently i9500 users don't have this problem. What seems to be causing this issue?

[Q] i have a question and i'm confused.. plz help me

ok here it is. i've flashed various roms but don't really know what everything is, i just followed all those insturctions but never bricked my device..
I live in China, use 3g mobile internet, my phone is korean note2(shv-e250l), use slimkat 4.4.2 nightly, bandwidth MI1, kernel thor 2.9.
i've been using these for about 1 month, and there was not any big problems, except that it feels like my signal strength or internet speed isn't as good as stock rom
but yesterday, when I hung up after calling my friend, all of sudden my phone can't read my sim card, so i reboot the device, and my mobile network doesn't work, and i reboot again, finally everything works.
after that, everytime i call someone my phone goes stupid and i have to reboot it twice.
and I started to wonder, does my bandwidth need to be updated? can I use newest stock rom's bandwidth?
newest stock rom of korean note2 is NA1, will using its bandwidth solve my problem?
if it does the magic, how do i apply bandwidth of NA1 to my phone?
HELP ME.............

[Q] Galaxy Note 3 not connecting mobile data

hey peeps, i need help on something. I flashed Omega rom for my galaxy note 3 and after reboot it wont connect to my 4gLTE network. The wifi works fine as well as everything else about my phone except that. Ive searched everywhere for answers but i dont seem to have any luck. Ive flashed a stock kernel thinking maybe it had something to do with it but it didnt help either. In my settings, it says service state in service but mobile network state disconnected. If any one can help me, PLEASE do. Thanks!!!

[Q] I9505. No signal when using 3G/4G. 2G works

Hi.
After updating Danvh's lolipop-rom to the latest version, I lost my signal and wifi. When I force my phone to use 2G (GSM only) in network-settings, everyting works normal.
But of cource I want the speed of 3G and 4G when using internet!
Sometimes (not often) 3G works.
Sometimes the phone says it has signal, but calls, internett etc don't work
I tried to flash the latest modem (XXUHOC6), but no luck. Have also tried modem XXUGNK4, XXUHOB8 and XXUHOB7. I tried to go back to the older version of the custom rom, but no luck
I have now downloaded the latest official stock rom from sammobile. But same problem with stock rom.
Any suggestions?
I have IMEI
Sorry, I have the same problem and I am still searching for a solution. And I have been trying everything as you and no solution. Sometimes I think is a hardware issue.
Very frustrating :S
Hope to find a solution soon.
I dont want to buy a new phone yet. There is no other phones out there that I want

Can't connect to LTE

Hi,
So I have only 3G connection on my Note 3, can't connect to LTE. I think it broke down a while ago when I was updating MagmaNX to UX10. ROM was working fine so I decided I don't want to break it down further and decided to go on with just 3G. But recently I decided to switch back to RR N by vidwhal, becuase Magma became laggy so I started playing with different modems and the result was either bootloop on older modems or just 3G connection on later ones. Currently I'm on CP_N9005XXUGBPG1 but I tried almost all of modems and BL from this thread https://forum.xda-developers.com/galaxy-note-3/general/bootloader-baseband-bl-cp-samsung-t3582504
It's apparently not ROM dependant as it's broken on both MagmaNX and RR N. Any other ideas on how to fix it?
Oh, and GPS also became pretty bad, it takes a few minutes to get the first fix.
If it matters I live in Poland.
Usual reply wipe phone flash stock rom .
Wouldn't connect to LTE on stock as well. Finally I found out it was not my phone's fault but carriers. Other SIM card in my phone has LTE and my SIM in another does not.

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